IBM Langflow Code Injection Vulnerability
IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/auto_login (mints SUPERUSER tokens to any network caller) with /api/v1/validate/code (executes user code via exec()) to achieve full RCE on default…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 4 / 5
- KEV catalog (CISA)04 Aug 2026
- Exploited in EUVD (ENISA)04 Aug 2026
- Used by ransomwareno
- EPSS above 10 %28.7%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/auto_login (mints SUPERUSER tokens to any network caller) with /api/v1/validate/code (executes user code via exec()) to achieve full RCE on default Langflow deployments
Affected products
- 1.0.0 ≤1.10.0
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
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Added to the KEV catalog
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CISA remediation due date
-
EPSS peak: 28.7%
References
Other exploited vulnerabilities from the same vendor
- CVE-2022-47986IBM Aspera Faspex Code Execution Vulnerability9.9 · Background exploitation
- CVE-2013-3993IBM InfoSphere BigInsights Invalid Input Vulnerability4.5 · Background exploitation
- CVE-2015-7450IBM WebSphere Application Server and Server Hypervisor Edition Code Injection.9.3 · Background exploitation
- CVE-2020-4430IBM Data Risk Manager Directory Traversal Vulnerability5.6 · Background exploitation
- CVE-2020-4428IBM Data Risk Manager Remote Code Execution Vulnerability7.3 · Background exploitation
- CVE-2020-4427IBM Data Risk Manager Security Bypass Vulnerability8.1 · Background exploitation